Hang in there brother. I get the "stop saying you understand" at times when I validate as well. Seems to be an art for when you lob that in there. I'd go back and re-read the validating post and take some time to put the phrases in your own words. My W told me I sounded like a therapy book when I regurgitated them from there. Needs to sound like it's coming from clearte.
For the other stuff, you probably need some vets to opine. Going dark seems like a possibility but as you know from my thread I'm no master of that.
Regardless, keep your head up and stay strong. Here to support you brother!
Me39 M11 : T13 D9 BD 5/31/16 In House S until 6/21/17 Divorced 10/5/18